<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>Document</title>
        <style>
        *{
            margin: 0px;
            padding: 0px;
    
        }
        .header{
            height: 68px;
            background: green;
        }
        .banner{
            height: 516px;
            width: 1212px;
            background: red;
            margin: 26px auto 26px;
        }
        .ma{
            width: 1212px;
            height: 37px;
            margin: 0px auto 26px;
            background: yellow;
        }
        .banner .nn{
            width: 910px;
            float: left;
        }

        .banner .mm li{
            width: 290px ;
            height: 163px;
            margin-bottom: 12px;
            background: pink;
            list-style: none;
            float: right;
        }
        
        </style>
    </head>
    <body>
        <div class="header"></div>
        <div class="banner">
            <img src="images/s003.jpg" alt="" class="nn" width="910px" height="516px">
            <ul class="mm">
                <li></li>
                <li></li>
                <li></li>
            </ul>
        </div>
        <ul class="ma"></ul>
        <ul class="mb"></ul>
        <p class="mc"></p>
    </body>
</html>